Molding-machine.



No. 827,675. PATENTBD JULY 31,190 H. TSGHERNING.

MOLDING MACHINE.

APPLIGATION FILED SEPT. 11,1905.

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MOLDING MACHINE.

APP-LIOATION FILED SBPT.11,1906.-

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1%- 827,675. PATENTED JULY 31, 1906; H. TSGHERNING. MOLDING MACHINE.

APPLICATION FILED-SEPT. 11,1905.-

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MOLDING- MACHINE.

APPLIOATION FILED sPT.11,1905.

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UNITED srArrEs rArEivr EErcE.

MOLDING-MACHINE.

Specification of Letters Patent.

Patented July 31, 1906.

Application filed September 11, 1905. Serial No. 277,865.

To all whom, it may concern:

Be it known that I, HENRY TSGHERNING, a

citizen of the United States of America, re siding at Freeport, in the county of Stephenson and State of Illinois, have invented certain new and useful Improvements in Molding-Machines,' of which the following is a specification. My invention relates to improvements in molding-machines, and is fully described and explained in this specification and shown in the accompanying drawings, in which Figure 1 is a side elevation of my improved device. Fig. 2 is a fragmental side elevation showing a portion of the moving platform. Fig. 3 is a View, partly in plan and partly in horizontal section, the line of section being indicated at 3 3 in Fig. 1. Fig.4 is a front elevation of the lower portion of the device. Fig. 5 is a top plan of the moving carriage. Fig. 6 is a top plan of the tracks upon the base of the device. Fig. 7 is a section in the line 7 7 of Fig. 3. Fig. 8 is a section in the line 8 8 of Fig. 3. Fig. 9 is a longitudinal section in the line 9 9 of Fig. 3, and Fig. 10 is a similar view showing the parts in a different osition.

T e device herein illustrated is an improvement upon the device of my Patent No. 793,860, granted July 4, 1905. Many of the parts are described and claimed in detail therein, and therefore will not be here particularly set forth.

Referring to the drawings, A'is the base, comprising two side pieces A and a transverse member A The side pieces are supported at their front and rear ends by wheels a, mounted upon short shafts a.

B represents the vertical rods, which are spaced apart at their upper ends and serve as guides for the cross-heads O, which are connected by links C to arms C carried on a rock-shaft G which can be operated by a hand-lever 0 When this hand-lever is operated, the cross-heads will move down toward the base of the machine. The weight of the cross-heads and the weight of the parts carried thereby is counterbalanced by weights D, carried on arms D and secured to the rock-shaft C E is the rotatable pattern-carrying head, journaled between the cross-heads.

The transverse member A of the base of the machine is perforated to receive two vertical screws I, which can be vertically adj usted by means of nuts 7;, and these screws carry a horizontal frame I, the construction of which is fully illustrated in Fig. 6. This frame, it will be seen, has at its sides two tracks i, angular in cross-section, with the angles at the outer lower corners. Upon these tracks run rollers mounted upon shafts j, which extend transversely of a carriage J, the construction of which is best seen in Fig. 5. This carriage, it will be noted, is in the form of an elongated rectangular frame, preferably made in the form' of'a single integral casting. The frame has on each side two downwardly-projecting gudgeons 1' Fig. 8, each of which carries a horizontal roller 3' which contacts with the outer vertical portions of the tracks 'i and operates to prevent lateral oscillation of the carriage J. The portions of the rollers which extend inside the side walls of the carriage J are cov* ered and protected by semicircular housings j, which operate to keep any sand' which might otherwise lodge upon them out of contact therewith. One of the cross-shafts j, preferably the rear one, carries a pinion y, which engages with a rack-bar "L cast integral with the frame I. The carriage J has at its rear end backwardly and downwardly extending cars, which carry a cross-shaft J, upon which are rollers j, which lie underneath the tracks i. One end of the shaft J is connected by a link 7' with a hand-lever J by which the carriage can be moved forward.

Upon the carriage J is a movable platform K, having tracks angular in cross-section with the angles at the upper and outer corners. These tracks lie directly over the tracks i and bear upon the rollers of the carriage J, and the tracks are-made of sufficient width to form a complete housing for said rollers and the lower tracks. Along the center of the platform runs a rack 7c, which meshes with the pinion 3' referred to.

In the operation of my improved device after the mold has been completed by pressing down the head and the flasks have been deposited upon the moving platform, as is fully set forth in my patent referred to, the lever J 2 is drawn forward, whereupon the carria e J is moved forward, and simultaneously a platform is forced forward at double speed of the carriage. While the device of my patent was highly satisfactory in use, it was found that occasionally the wheels of the car riage slipped, throwing the platform out of its true position with reference to the base of the machine, and to overcomeithislidifiiculty I have provided in addition to the mechanism of said patent the positive gearing herein shown, which operates to keep the moving platform in pro er position at all" times. This device coup ed with the rollers 3' causes a particularly easy and perfect movement of the platform under the influence of'the lever.

I realize that considerable variation is possible in the details of this construction Without departin from the spirit-0f the invention, and It erefore do not intend to limit myself to the specific form hereinshownand described.

I claim'as new and desire to secure byLetters Patent 1. The combination with a base, a vertically moving pattern carrying head and mechanism for moving the same, of tracks on the base, a carriage,-rollers on the carriage running on the tracks, a platform, tracks on the platform running upon the rollers of the carriage, means for moving thecarriage for- Ward, and positive gearing between the car= riage, base and platform, whereby the platform is moved at double the speed of the carriage.

2. The combination with a base, a verti= callyemoving pattern-carrying head and mechanism for moving the same, of tracks on the base, a carriage, rollers on the car riage running on the tracks, a platform, tracks on the platform running upon the rollers of the carriage, means for moving the carriageforward, a rack-bar on the base, a gear on the carriage, and a second rack-bar on the platform, said gear being in mesh with both rack-bars. I i

In witness whereof I have signed the above application for Letters Patent, at Freeport, in the county o'fStephenson and State of Illinois, thisfith day of September, A. D. 1905.

'- HENRY TSOHERNING.

Witnesses:

FRED E. BOEDEKER, WM. KARSTEDT. 

